PBS
Nova: Picturing the Molecules of Life
Retrace the development of our knowledge of nucleic acids by viewing pictures of nucleic acids (both DNA and RNA) taken in 1952, 1973, 1979, 1980, 1984 and 2001.
Khan Academy
Khan Academy: Biology: Chemistry of Life: Chemical Bonds
Review over covalent, hydrogen, and ionic bonding in this article. Learn how molecules are held together by chemical bonds.
CK-12 Foundation
Ck 12: Life Science: Origins of Life
[Free Registration/Login may be required to access all resource tools.] There is good evidence that life has probably existed on Earth for most of Earth's history. Fossils of blue-green algae found in Australia are the oldest fossils of...
Georgia Department of Education
Ga Virtual Learning: Ap Biology: Chemistry of Life
Through informational text, interactive activities, animations, and video clips, students examine the chemistry of living things, and they learn how interactions from atoms are fundamental to life as we know it.
McGraw Hill
Glencoe Biology: The Building Blocks of Life: Self Check Quiz
Try these five multiple-choice questions about the building blocks of life. The quiz is self-checking, and provides hints to the student if needed.
University of California
University of California Museum of Paleontology: Understanding Science: Dna
Find out how the human side of science played a role in the significant discovery of the molecule of life, DNA.
University of Utah
University of Utah: Learn Genetics: Bringing Rna Into View
What molecules were involved in the origin of life? This series explores the roles of RNA, DNA, and protein. Special attention is given to RNA because of its ability to perform several tasks necessary for life processes. All of the...
Concord Consortium
Concord Consortium: Stem Resources: The Tree of Life's Molecules
An interactive activity where you can zoom in to explore the macromolecules present in organisms. Learn about proteins, carbohydrates, lipids, and nucleic acid as you investigate the molecular structure of these types of macromolecules....
Concord Consortium
Concord Consortium: Molecular Workbench Showcase: The Tree of Life's Molecules
Explore macromolecules and the smaller molecules that make up living organisms in this module.
Soft Schools
Soft Schools: Dna Quiz
Take this interactive, multiple-choice quiz over the molecule of life, DNA. Then review your score and any missed questions at the end.
CK-12 Foundation
Ck 12: Biology: Earth Forms and Life Begins Study Guide
This comprehensive study guide covers the main terms and concepts needed for a unit on the origin of life.
Sophia Learning
Sophia: Structure and Function of Macromolecules: Carbohydrates
An introduction to the structure and function of the energy-rich molecules, carbohydrates.
NBC
Nbc Learn: Chemistry of Water
This video/lesson series explains how the structure and behavior of H2O in liquid form gives water its properties, and make it a chemical essential for life. Also in this collection: a Victorian-era depiction of the water molecule; news...
Science Education Resource Center at Carleton College
Serc: Lab 6: Air, Water, Land, & Life: A Global Perspective
An investigation that is part of a series of lab lessons that expose students to Earth Systems through research, data, and visualizations. In this lab, students will follow the pathway of water on a big scale and a small scale down to...
Cold Spring Harbor Laboratory
Dolan Dna Learning Center: Dna Molecule: Basepairing
See how the discovery of DNA in 1953 sparked a new era of research into the code of life. [1:40]
American Museum of Natural History
American Museum of Natural History: What Is Water?
This comprehensive article provides information about the physical properties of water, the importance of water as an Earth material, the processes and cycles that water undergoes on Earth, its importance to life on Earth, and why we...
CK-12 Foundation
Ck 12: Life Science: 2.1 Elements and Compounds
Learn how basic elements form molecules to support life.
CK-12 Foundation
Ck 12: Life Science: Types of Nutrients
[Free Registration/Login may be required to access all resource tools.] Carbohydrates, proteins, and lipids contain energy. When your body digests food, it breaks down the molecules of these nutrients. This releases the energy so your...
Cold Spring Harbor Laboratory
Dna Interactive: Genome
This site is provided for by DNA Interactive. The genome is the entire endowment of genetic information. It is the "Book of life," on an organism. This site demonstrates the methods used to map and sequence the human genome and to...
University of Illinois
University of Illinois: The Photosynthetic Process
Site describes process of photosynthesis, including role of pigment molecules, electron transport, ATP synthesis, and carbohydrate synthesis. Includes links to illustrative graphics.
CK-12 Foundation
Ck 12: Biology: Water and Life
[Free Registration/Login may be required to access all resource tools.] Covers the structure and properties of water.
Other
My Science Box: Is It Alive?
A lesson plan that introduces young scholars to the concept of classifying objects as either living or non-living. From this lesson plan, students begin to think about the necessary characteristics of life.
CK-12 Foundation
Ck 12: Life Science: Dna Structure and Replication
[Free Registration/Login may be required to access all resource tools.] DNA must replicate (copy) itself so that each resulting cell after mitosis and cell division has the same DNA as the parent cell. DNA replication occurs during the S...
CK-12 Foundation
Ck 12: Biology: First Organic Molecules
[Free Registration/Login may be required to access all resource tools.] Examines how the first organic molecules were formed.